Researches 
On the Composition and Digestibility of 
Japanese Feeding Stuffs. 
By Dr. O. Kellner. 
Investigations into the general laws of animal nutrition 
as well as into those which are more specially connected 
with the feeding of domestic animals, have been most 
eagerly and assiduously carried on during the last 30 years 
in Germany, where J. von Liebig g"ave a mighty impulse to 
such researches by his treatise : die Thierchemie oder die 
organische Chemie in ihrer Anwendung- auf Physiologie 
und Pathologie (Animal or Org-anic Chemistry applied to 
Physiology and Pathology). There were particularly C. 
von Voit and M. von Pettenkofer and their pupils, who 
established by systematical investigations a theory of animal 
nutrition, the foundation, upon which W. Henneberg and 
F. Stohmann, E. von Wolff, G. Kühn and others built up 
the principles of the rational feeding of live-stock. 
The first practical subject to be experimented on was 
suggested by the demand of each class of farm animals for 
really digestible nutrients, and the results of such researches 
were the so-called “feeding standards” which are simply con¬ 
cise statements of those amounts of digestible protein, fat and 
carbohydrates found to be in general best adapted to the 
purpose in view. For example, the feeding standard for 
sheep of the coarse-wooled breeds, kept for wool production 
is according to E. von Wolff, as follows : 
